<%@page import="java.util.List"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta content="3" http-equiv="refresh">
<title>Insert title here</title>
</head>
<body>
在线：<br>
<% 
   List<String> list=(List<String>)application.getAttribute("users");
    if(list!=null)
    for(String s:list){
    	 out.print(s+"<br>");
     }

%>
</body>
</html>